This
guarantees the lifespan the LED luminaires, secur-
ing the investment. availability) Series connection (luminaire goes off)
In the commercial section and the field street
lighting, with long lifespans, enormous cost savings
are possible, despite the increased procurement
price.TBS
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2018
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Parallel connection
The surge protection device located upstream of
the LED luminaire. suitable
protection device upstream the electronic LED
drivers safe barrier against surge voltages. The surge pro-
tection disconnected.
Failure behaviour:
The display the ÜSM-LED goes out.
TBS
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2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
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215
Chapter The internal lightning protection system
. However, premature failure from surge voltage
damage can push the return investment back into
the future. The investments can protected through
suitable protection measures. The fail-
ure signalled the luminaire going out. The surge pro-
tection and the circuit (L') are disconnected.
Series connection
The surge protection switched series the LED
luminaire.
Failure behaviour:
The display the ÜSM-LED goes out. The LED luminaire remains lit
without protection.
L
N
PE
L
L'
LED/
end
device
L
L
L'
N
PE
end
LED/
device
L Phase feed line
L`
Phase from the protection device
(switch-off case failure)
PE Earth
N Neutral conductor
LED Luminaire
L Phase feed line
L`
Phase from the protection device
(switch-off case failure)
PE Earth
N Neutral conductor
LED Luminaire
Parallel connection (max
